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6 002238 Plan 1 (East Side Route)--This plan will conserve and convey an additional water supply of 1,200,000 acre-feet per year by stor- age on Trinity River and conveyance through East Side Division facilities, and thence through the California Aqueduct to southern California. . To obtain the additional yield of water, two storage reser- voirs are proposed on the Trinity River~ Helena Reservoir, with a gross storage capacity of 2,800,000 acre-feet, would be built on the main Trinity River downstream from Lewiston Dam. This reservoir would develop an annual new water yield of 600,000 acre- feet which would be diverted to the Sacramento River. Subsequently, Eltapom Reservoir, with a gross storage capacity of 3,100,000 acre- feet, would be constructed on the South Fork of Trinity River. This reservoir also would develop an annual yield of 600,000 acre- feet which would be diverted to Helena Reservoir, with subsequent diversion to Sacramento River. Power generating facilities would be incorporated with these proposed developments. Estimated capital costs of these reservoirs and associated facilities are $540,000,000. Annual OM&R costs would be offset by power revenues, with a net annual amount remaining of about $12,300,000. This plan proposes to add a 2,000 c.f.s. increment to the proposed East Side Division conveyance facilities from the Sacra- mento River via Hood-Clay pump lift and then through the East Side Division conveyance facilities to the Kern River. From that location a new 2,000 c.f.s. canal would be constructed to connect with the California Aqueduct at Wheeler Ridge Pumping Plant No.1. . Additional facilities required, therefore, will be the enlargement of the East Side Division conveyance facilities, and construction of the 36-mile Kern River-Wheeler Ridge canal with 2,000 c.f.s. capacity. A new pumping plant with a head of about 150 feet will be required to connect this proposed system with the California Aqueduct at Wheeler Ridge. The total capital cost, on a reconnaissance basis, is estimated to be $145,000,000 for the facilities from the Delta through the East Side System to Wheeler Ridge. Annual OM&R costs for these facilities are estimated to be $1,000,000, not including cost of pumping energy. Cost of pumping is estimated at $7,100,000. From Wheeler Ridge the increased water supply of 1,200,000 acre-feet would be conveyed through the California Aqueduct to Perris Reservoir. The estbnated capital cost for incremental conveyance facilities from Wheeler Ridge to Perris Reservoir is $290,000,000. Annual OM&R costs are estimated at $2,700,000. Net pumping costs for conveyance from Wheeler Ridge to Perris Reservoir are estimated to be $19,900,000.